Home / 990,864.32-1,367,391.56-538,152.08

Finding the Fourth Proportional to 990,864.32, 1,367,391.56 and 538,152.08

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Solution

The fourth proportional to 990,864.32, 1,367,391.56 and 538,152.08 is: 742,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,864.32 : 1,367,391.56 = 538,152.08 : x
  2. Step 2: Convert to fraction form
    990,864.32/1,367,391.56 = 538,152.08/x
  3. Step 3: Cross multiply
    990,864.32x = 1,367,391.56 × 538,152.08
  4. Step 4: Simplify right side
    990,864.32x = 735,864,612,188.45
  5. Step 5: Solve for x
    x = 735,864,612,188.45/990,864.32
  6. Step 6: Final answer
    x = 742,649.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.